﻿<%@ Page Language="C#" AutoEventWireup="true" CodeFile="1-2.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
        </div>
        操作数1<asp:TextBox ID="num1" runat="server" OnTextChanged="num1_TextChanged"></asp:TextBox>
        <p>
            操作数2<asp:TextBox ID="num2" runat="server"></asp:TextBox>
        </p>
        <p>
            <asp:Button ID="add" runat="server" OnClick="add_Click" Text="+" />
            <asp:Button ID="sub" runat="server" OnClick="sub_Click" Text="-" />
            <asp:Button ID="Button4" runat="server" OnClick="Button4_Click" Text="*" />
            <asp:Button ID="Button5" runat="server" OnClick="Button5_Click" Text="/" />
        </p>
        <p>
            &nbsp;</p>
        <p>
            <asp:Label ID="res" runat="server" Text="Label"></asp:Label>
        </p>
    </form>
</body>
</html>
